The revised edition of the book in two volumes furnishes complete coverage of all aspects of physiology in detail and is intended for MBBS and MD students. It contains more than 1000 study questions, about 2000 MCQs and above 700 figures. Many clinical pictures have been incorporated for better understanding of clinical concepts. A rapid preview has been presented to help the readers have a bird’s eye view of the chapter’s content. Study questions at the end of each chapter have been modified as per guidelines issued by the Medical Council of India (MCI). A detailed index has been prepared meticulously to search out any test content easily. Volume I includes General Physiology, Blood, Nerve, Muscle Physiology, The Digestive System, The Cardiovascular System (CVS), The Respiration System and The Excretory System. Volume II includes Metabolism and Nutrition, The Endocrine System, The Reproductive System, The Nervous System and The Special Senses.